Work-support.



W. H. BORDEN.

WORK SUPPORT.

APPLICATION man SEPT. 24. 1914.

Patend May 29, 1917.

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WILLIAM'. H. BORDEN, OF WINCI-IESTER, MASSACHUSETTS, ASSIGNOR TO UNITEDSHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

WORK-SUPPORT.

Specification of Letters Patent.

Patented May 29, 191W..

Application filed September 24., 1914. Serial No. 863,362.

To all whom it may concern:

Be it known that I, WILLIAM H. BORDEN, a citizen of the United States,residingat Winchester, in the county of Middlesex and State ofMassachusetts, have invented certain Improvements in Work-Supports, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like reference characters on the drawingsindicating like parts in the several figures.

The present invention relates to work supports and more particularly towork supports of the type used in connection with machines forsuccessively inserting fastenings in boots and shoes while upon thelast.

Substantially all work supports which are in use at the present time forsupporting a shoe upon the last during the fastening inserting operationcomprise a pivoted spindle arranged to be moved in an arc of long radiusand carrying at its upper end a last pin which enters a last pin socketin the heel end of the last. Although jacks of the foregoing type haveproved to be substantially satisfactory for heel seat and heel work ithas been found that the range of adjustment of the pivoted spindleconstruction of jack is not sufficient when operating upon heels ofextreme dimensions or unusual styles.

An object of the present invention is to provide an improved type ofjack of wide adaptability.

A further object of the invention is to provide a jack which will have alarge range of movement in its work presenting operations but which willat the same time maintain the surface of the shoe presented insubstantially a horizontal plane. To this end the jack is mounted formovement in a horizontal plane in the direction of the feed of the work,is normally in a position to readily receive the shoe or to permit theremoval of the shoe therefrom and is also arranged to be moved in adirection transverse to the horizontal movement to position the shoewith respect to the fastening inserting mechanism. Advantageously thepoints of support of the jack spindle are approximately in the samevertical plane as that in which the operations of the machine areperformed, thus preventing the shoe from being crowded against the workgage, whereby the edge of the sole or heel of the shoe may be marred or,when the jack is used with a machine for inserting fastenings, thefastenings may not be located the desired distance froln the edge of thework.

Other objects and important features of the invention will appear fromthe following description and claims when considered in connection withthe accompanying drawings in which a preferred embodiment of theinvention is illustrated.

In the drawings,

Figure 1 is a side elevation of the work support of the presentinvention; and

Fig. 2 is a perspective view of the work support showing a shoe inposition thereon and its relation to the machine.

In the embodiment of the invention herein selected for illustration 2 isa vertical :bearing on the column 3 of any well-known type of fasteninginserting machine, for instance the machine shown in the patent to GodduNo. 1,030,775, granted June 25, 1912. A jack post 5, the lower end ofwhich is connected to a treadle (not shown), is adapted to slide up anddown in the bearing 2 and to the upper end of this post a depending jackframe is adjustably clamped by the bolts 6. This frame consists of twodepending arms 8 and 9, the lower ends of which are formed to provideoppositely projecting horizontal arms 12 and 13 extending transverselyof the machine or in the direction of the feed of the work and inapproximately the same plane as the axis of the supporting jack post'.Two tracks 15 and 16, which are preferably round in cross section, aresupported at their outer ends in a horizontal position by the upturnedends of the arms 8 and 9 and at the opposite ends by bosses formed onthe arms of the jack frame and suspended from these tracks is a cradle18 carrying a jack spindle 20. The ends of this cradle 18 are o'set tooverlie the tracks 15 and 16 and are slotted to receive two groovedanti-friction rolls 21 and 22 which are mounted on pins in the ends ofthe cradle, one above the other so as' to engage opposite sides of thetracks thereby enabling the cradle to be moved easily over the tracks toposition the work with respect to the machine, the lower rolls 22preventing the cradle from being displaced from the tracks.

Since the cradle 18 and spindle 20 are suspended at one side of thetracks 15 and 1G the center of gravity of the cradle and spindle is solocated that the last supporting spindle is normally in position forreceiving the work or permitting the work to be removed therefrom asshown in Fig. 1 and the cradle and spindle may be tipped about thetracks 15 and 16 as a pivot to present the work to the operatingmechanism. lntermediate between the ends of the cradle 18 is an upwardlyprojecting bearing 23 which receives the lower portion of thejackspindle 20, a key 25 on the spindle and a key-way 26 in the bearingbeing provided to prevent the rotation of the jack spindle. ln order toaccommodate thickness of `work outside the range provided by the treadlemechanism the spindle 2O may be adjusted vertically on the cradle 18 bymeans of a hand wheel 29 which is threaded on to the threaded lowerportion of the spindle 2O and confined against movement longitudinallyof the spindle in a slot in the base of the cradle, the pitch of thethreads on the spindle being such that a fine and positive adjustment isprovided therefor.

A last pin holder 32 carrying1 a freely rotatable last pin 33 is pivotedat 35 in a slot in the upper end of the ack spindle and may be angularlyadjusted relatively to the spindle accordingto the requirements of thework being operated upon by an adjusting screw 36 in any well-knownmanner. The upper end of the spindle 20 is offset so that the last pin33 upon which the shoe is mounted presents the shoe in a substantiallyhorizontal position t-o the fastening inserting mechanism and the planein which the spindle 20 is supported on the jack is advantageously inapproximate alinement with that of the driver 3S of the machine. rlhusthe force required to insert the fastenings is received by the work insubstantially a single plane which prevents the spindle with the shoethereon from being forced inwardly against the work gage 39 of themachine with such force as to injure or scar the edge of the work andalso prevent the fastenings from being unevenly spaced about the work.

ln practice the last carrying the shoe is applied to the last pin 33 andthe last supporting spindle moved about the tracks as a pivot intoposition to present the shoe in a horizontal position to receive thefastenings. As the insertion of the fastenings progresses the jack maybe readily moved along the tracks to present other portions of the shoeto the operating mechanism, the work receiving surface of the shoe beingmaintained in a substantially horizontal position without anymanipulation of the shoe on the part of the operator to counteract thechange of inclination of the spindle as the position of the shoe ischanged.

llaving described my invention with particular reference to a preferredembodiment thereof, what I claim as new and desire to secure by LettersPatent is 1. ln a jack, a frame comprising two oppositely extendingarms, a track supported in horizontal position on each of said arms, acradle, the opposite ends of which engage the respective tracks, and alast supporting spindle adjustably mounted on the cradle intermediatebetween its ends, said cradle and said last supporting` spindle beingmovable over said tracks and tiltable on said tracks transverselythereof.

2. In a jack, a frame comprising two oppositely extending horizontalarms, a track supported in horizontal position on each ot' said arms, acradle suspended at each end from said tracks, rollers carried by saidcradle and bearing upon said track in such manner that said cradle maymove freely over said track and may tilt about said track, an upwardlyextending jack spindle mounted on said cradle and means for effecting avertical adjustment of said spindle.

3. In a jack, a frame comprising two horizontal arms extending inopposite directions along the line of the feed of the work, a tracksupported in horizontal position on each of the respective arms, acradle, suspended at each end from said tracks, said cradle beingmovable over the tracks and tiltable thereon and an adjustable lastsupporting spindle mounted on said cradle.

4c. In a jack, a frame, tracks supported by, said frame, a cradlesupported by and movable over said tracks, said cradle being tiltableabout said tracks, and a last supporting spindle adjustably mounted onsaid cradle. v

5. In a jack, a fra-me, tracks horizontally supported by said frame, acradle suspended from said tracks, said cradle being movable over thetracks and tiltable about the tracks and a last supporting spindlemounted on said cradle.

6. A shoe supporting jack comprising, in combination, a last supportingspindle, a last pin and holder adjust-ably mounted upon said spindle anda supporting bed upon which said spindle is mounted for free horizontalmovement to and fro through a single vertical plane and for free tiltingmovement about an axis coincident with the said line, said spindle andsaid bed being relatively constructed and arranged to locate the spindleand the bed in approximate vertical alinement whenever the last pin andholder are in work presenting position.

7. In a jack, the combination with a supporting bed, of a lastsupporting spindle arranged for horizontal movement to and fro through asingle vertical plane extending in the direction of the feed of the workand for free tipping movement transverse to its horizontal movement,said bedbeing located in approximate vertical alinement with lon-1,227,575 ggg gitudinal thrusts against said spindle when said spindleis in Work presenting position.

8. A jack for a shoe machine comprising, in combination, a supportingbed, a cradle suspended for horizontal movement over said bed, and alast supporting spindle adjustably mounted on said cradle at one side ofsaid bed, the center of gravity of said cradle and said spindle being solocated that position for receiving the Work or permitting the Work tobe removed therefrom.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

WILLiM l-l. BURDEN.

Witnesses ELIZABETH C. COUPE,

10 the last supporting spindle is normally in WILLIAM B. KING.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

